{
  "abstract": "This disclosure describes an automated assembly system for fastening components with threaded fasteners. The system employs a screwdriving mechanism that integrates both torque and depth monitoring to ensure proper fastener seating and detect integrity issues with the receiving boss. By establishing a dynamic depth window for applied torque, the system can differentiate between a correctly tightened fastener and one that has stripped its mating thread in the boss, which would otherwise exhibit similar torque characteristics. Parts failing this cross-check are marked for rework, preventing the propagation of assembly defects and enhancing product reliability.",
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    "manufacturing-assembly-equipment/assembly-systems/screwdriving-systems",
    "tools-tooling/fastening-tools/torque-tools"
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    {
      "caption": "A block diagram illustrating the main components and data flow within the automated screwdriving system.",
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    {
      "caption": "An elevation view detailing the interaction between the screwdriving head, fastener, and workpiece with its boss.",
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  "keywords": [
    "screwdriving",
    "torque monitoring",
    "depth sensing",
    "boss stripping",
    "assembly automation",
    "fastener verification",
    "rework marking",
    "process control"
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  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
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  "publication_id": "OT-2026-000000052",
  "published_at": "2026-09-15T11:52:55.891144Z",
  "publisher": "Nebula Innovations Limited",
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  "supersedes": null,
  "title": "Screwdriving System with Depth and Torque Cross-Check for Boss Integrity",
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}